13f9d6ad7SLin Ling /* 23f9d6ad7SLin Ling * CDDL HEADER START 33f9d6ad7SLin Ling * 43f9d6ad7SLin Ling * The contents of this file are subject to the terms of the 53f9d6ad7SLin Ling * Common Development and Distribution License (the "License"). 63f9d6ad7SLin Ling * You may not use this file except in compliance with the License. 73f9d6ad7SLin Ling * 83f9d6ad7SLin Ling * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 93f9d6ad7SLin Ling * or http://www.opensolaris.org/os/licensing. 103f9d6ad7SLin Ling * See the License for the specific language governing permissions 113f9d6ad7SLin Ling * and limitations under the License. 123f9d6ad7SLin Ling * 133f9d6ad7SLin Ling * When distributing Covered Code, include this CDDL HEADER in each 143f9d6ad7SLin Ling * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 153f9d6ad7SLin Ling * If applicable, add the following below this CDDL HEADER, with the 163f9d6ad7SLin Ling * fields enclosed by brackets "[]" replaced with your own identifying 173f9d6ad7SLin Ling * information: Portions Copyright [yyyy] [name of copyright owner] 183f9d6ad7SLin Ling * 193f9d6ad7SLin Ling * CDDL HEADER END 203f9d6ad7SLin Ling */ 213f9d6ad7SLin Ling /* 223f9d6ad7SLin Ling * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 233f9d6ad7SLin Ling */ 243f9d6ad7SLin Ling 253f9d6ad7SLin Ling #ifndef _SYS_DSL_SCAN_H 263f9d6ad7SLin Ling #define _SYS_DSL_SCAN_H 273f9d6ad7SLin Ling 283f9d6ad7SLin Ling #include <sys/zfs_context.h> 293f9d6ad7SLin Ling #include <sys/zio.h> 303f9d6ad7SLin Ling #include <sys/ddt.h> 313f9d6ad7SLin Ling #include <sys/bplist.h> 323f9d6ad7SLin Ling 333f9d6ad7SLin Ling #ifdef __cplusplus 343f9d6ad7SLin Ling extern "C" { 353f9d6ad7SLin Ling #endif 363f9d6ad7SLin Ling 373f9d6ad7SLin Ling struct objset; 383f9d6ad7SLin Ling struct dsl_dir; 393f9d6ad7SLin Ling struct dsl_dataset; 403f9d6ad7SLin Ling struct dsl_pool; 413f9d6ad7SLin Ling struct dmu_tx; 423f9d6ad7SLin Ling 433f9d6ad7SLin Ling /* 443f9d6ad7SLin Ling * All members of this structure must be uint64_t, for byteswap 453f9d6ad7SLin Ling * purposes. 463f9d6ad7SLin Ling */ 473f9d6ad7SLin Ling typedef struct dsl_scan_phys { 483f9d6ad7SLin Ling uint64_t scn_func; /* pool_scan_func_t */ 493f9d6ad7SLin Ling uint64_t scn_state; /* dsl_scan_state_t */ 503f9d6ad7SLin Ling uint64_t scn_queue_obj; 513f9d6ad7SLin Ling uint64_t scn_min_txg; 523f9d6ad7SLin Ling uint64_t scn_max_txg; 533f9d6ad7SLin Ling uint64_t scn_cur_min_txg; 543f9d6ad7SLin Ling uint64_t scn_cur_max_txg; 553f9d6ad7SLin Ling uint64_t scn_start_time; 563f9d6ad7SLin Ling uint64_t scn_end_time; 573f9d6ad7SLin Ling uint64_t scn_to_examine; /* total bytes to be scanned */ 583f9d6ad7SLin Ling uint64_t scn_examined; /* bytes scanned so far */ 593f9d6ad7SLin Ling uint64_t scn_to_process; 603f9d6ad7SLin Ling uint64_t scn_processed; 613f9d6ad7SLin Ling uint64_t scn_errors; /* scan I/O error count */ 623f9d6ad7SLin Ling uint64_t scn_ddt_class_max; 633f9d6ad7SLin Ling ddt_bookmark_t scn_ddt_bookmark; 643f9d6ad7SLin Ling zbookmark_t scn_bookmark; 653f9d6ad7SLin Ling uint64_t scn_flags; /* dsl_scan_flags_t */ 663f9d6ad7SLin Ling } dsl_scan_phys_t; 673f9d6ad7SLin Ling 683f9d6ad7SLin Ling #define SCAN_PHYS_NUMINTS (sizeof (dsl_scan_phys_t) / sizeof (uint64_t)) 693f9d6ad7SLin Ling 703f9d6ad7SLin Ling typedef enum dsl_scan_flags { 713f9d6ad7SLin Ling DSF_VISIT_DS_AGAIN = 1<<0, 723f9d6ad7SLin Ling } dsl_scan_flags_t; 733f9d6ad7SLin Ling 743f9d6ad7SLin Ling typedef struct dsl_scan { 753f9d6ad7SLin Ling struct dsl_pool *scn_dp; 763f9d6ad7SLin Ling 773f9d6ad7SLin Ling boolean_t scn_pausing; 783f9d6ad7SLin Ling uint64_t scn_restart_txg; 793f9d6ad7SLin Ling uint64_t scn_sync_start_time; 80*cde58dbcSMatthew Ahrens zio_t *scn_zio_root; 813f9d6ad7SLin Ling 823f9d6ad7SLin Ling /* for debugging / information */ 833f9d6ad7SLin Ling uint64_t scn_visited_this_txg; 843f9d6ad7SLin Ling 853f9d6ad7SLin Ling dsl_scan_phys_t scn_phys; 863f9d6ad7SLin Ling } dsl_scan_t; 873f9d6ad7SLin Ling 883f9d6ad7SLin Ling int dsl_scan_init(struct dsl_pool *dp, uint64_t txg); 893f9d6ad7SLin Ling void dsl_scan_fini(struct dsl_pool *dp); 903f9d6ad7SLin Ling void dsl_scan_sync(struct dsl_pool *, dmu_tx_t *); 913f9d6ad7SLin Ling int dsl_scan_cancel(struct dsl_pool *); 923f9d6ad7SLin Ling int dsl_scan(struct dsl_pool *, pool_scan_func_t); 933f9d6ad7SLin Ling void dsl_resilver_restart(struct dsl_pool *, uint64_t txg); 943f9d6ad7SLin Ling boolean_t dsl_scan_resilvering(struct dsl_pool *dp); 953f9d6ad7SLin Ling boolean_t dsl_dataset_unstable(struct dsl_dataset *ds); 963f9d6ad7SLin Ling void dsl_scan_ddt_entry(dsl_scan_t *scn, enum zio_checksum checksum, 973f9d6ad7SLin Ling ddt_entry_t *dde, dmu_tx_t *tx); 983f9d6ad7SLin Ling void dsl_scan_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); 993f9d6ad7SLin Ling void dsl_scan_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); 1003f9d6ad7SLin Ling void dsl_scan_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, 1013f9d6ad7SLin Ling struct dmu_tx *tx); 102*cde58dbcSMatthew Ahrens boolean_t dsl_scan_active(dsl_scan_t *scn); 1033f9d6ad7SLin Ling 1043f9d6ad7SLin Ling #ifdef __cplusplus 1053f9d6ad7SLin Ling } 1063f9d6ad7SLin Ling #endif 1073f9d6ad7SLin Ling 1083f9d6ad7SLin Ling #endif /* _SYS_DSL_SCAN_H */ 109